./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71daa4447a811360729951159d42c752715aafb50c3ad4dcb2ed5d242a4f4a78 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 15:56:08,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:56:08,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:56:08,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:56:08,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:56:08,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:56:08,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:56:08,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:56:08,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:56:08,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:56:08,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:56:08,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:56:08,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:56:08,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:56:08,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:56:08,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:56:08,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:56:08,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:56:08,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:56:08,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:56:08,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:56:08,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:56:08,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:56:08,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:56:08,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:56:08,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:56:08,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:56:08,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:56:08,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:56:08,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:56:08,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:56:08,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:56:08,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:56:08,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:56:08,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:56:08,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:56:08,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:56:08,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:56:08,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:56:08,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:56:08,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:56:08,344 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-16 15:56:08,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:56:08,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:56:08,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:56:08,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:56:08,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:56:08,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:56:08,400 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:56:08,401 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:56:08,401 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:56:08,401 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:56:08,403 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:56:08,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:56:08,403 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:56:08,404 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:56:08,404 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:56:08,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:56:08,405 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:56:08,405 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:56:08,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:56:08,406 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:56:08,406 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 15:56:08,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:56:08,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:56:08,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:56:08,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:56:08,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:56:08,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:56:08,408 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 15:56:08,409 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:56:08,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:56:08,410 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:56:08,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:56:08,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:56:08,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:56:08,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:56:08,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:56:08,412 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:56:08,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:56:08,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:56:08,413 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:56:08,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:56:08,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:56:08,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:56:08,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71daa4447a811360729951159d42c752715aafb50c3ad4dcb2ed5d242a4f4a78 [2022-11-16 15:56:08,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:56:08,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:56:08,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:56:08,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:56:08,817 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:56:08,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2022-11-16 15:56:08,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/data/089faccad/13f19cfef0034c2cb42d3819e5b322fb/FLAG738d07e22 [2022-11-16 15:56:09,575 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:56:09,576 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/sv-benchmarks/c/array-memsafety/bubblesort-alloca-2.i [2022-11-16 15:56:09,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/data/089faccad/13f19cfef0034c2cb42d3819e5b322fb/FLAG738d07e22 [2022-11-16 15:56:09,907 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/data/089faccad/13f19cfef0034c2cb42d3819e5b322fb [2022-11-16 15:56:09,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:56:09,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:56:09,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:56:09,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:56:09,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:56:09,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:56:09" (1/1) ... [2022-11-16 15:56:09,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213ced66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:09, skipping insertion in model container [2022-11-16 15:56:09,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:56:09" (1/1) ... [2022-11-16 15:56:09,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:56:10,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:56:10,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:56:10,556 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:56:10,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:56:10,668 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:56:10,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10 WrapperNode [2022-11-16 15:56:10,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:56:10,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:56:10,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:56:10,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:56:10,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,741 INFO L138 Inliner]: procedures = 116, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-11-16 15:56:10,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:56:10,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:56:10,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:56:10,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:56:10,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,770 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:56:10,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:56:10,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:56:10,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:56:10,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (1/1) ... [2022-11-16 15:56:10,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:56:10,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:10,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:56:10,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:56:10,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:56:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:56:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:56:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:56:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:56:10,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:56:11,011 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:56:11,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:56:11,207 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:56:11,269 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:56:11,269 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 15:56:11,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:56:11 BoogieIcfgContainer [2022-11-16 15:56:11,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:56:11,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:56:11,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:56:11,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:56:11,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:56:09" (1/3) ... [2022-11-16 15:56:11,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169fe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:56:11, skipping insertion in model container [2022-11-16 15:56:11,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:56:10" (2/3) ... [2022-11-16 15:56:11,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@169fe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:56:11, skipping insertion in model container [2022-11-16 15:56:11,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:56:11" (3/3) ... [2022-11-16 15:56:11,284 INFO L112 eAbstractionObserver]: Analyzing ICFG bubblesort-alloca-2.i [2022-11-16 15:56:11,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:56:11,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-16 15:56:11,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:56:11,428 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@241b19f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:56:11,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-11-16 15:56:11,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 20 states have (on average 1.9) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 15:56:11,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:11,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 15:56:11,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:11,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:11,455 INFO L85 PathProgramCache]: Analyzing trace with hash 121269, now seen corresponding path program 1 times [2022-11-16 15:56:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:11,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078658106] [2022-11-16 15:56:11,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:11,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:11,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:11,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078658106] [2022-11-16 15:56:11,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078658106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:11,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:11,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:56:11,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346153067] [2022-11-16 15:56:11,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:11,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:11,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:11,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:11,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:11,980 INFO L87 Difference]: Start difference. First operand has 35 states, 20 states have (on average 1.9) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:12,135 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2022-11-16 15:56:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:56:12,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 15:56:12,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:12,149 INFO L225 Difference]: With dead ends: 69 [2022-11-16 15:56:12,149 INFO L226 Difference]: Without dead ends: 66 [2022-11-16 15:56:12,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:12,157 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 65 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:12,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 91 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-16 15:56:12,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 36. [2022-11-16 15:56:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-11-16 15:56:12,209 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 3 [2022-11-16 15:56:12,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:12,209 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-11-16 15:56:12,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-11-16 15:56:12,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-16 15:56:12,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:12,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-16 15:56:12,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:56:12,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:12,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:12,215 INFO L85 PathProgramCache]: Analyzing trace with hash 120889, now seen corresponding path program 1 times [2022-11-16 15:56:12,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:12,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533525116] [2022-11-16 15:56:12,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:12,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:12,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:12,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533525116] [2022-11-16 15:56:12,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533525116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:12,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:12,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:56:12,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902318217] [2022-11-16 15:56:12,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:12,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:12,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:12,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:12,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:12,395 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:12,480 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2022-11-16 15:56:12,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:56:12,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-16 15:56:12,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:12,482 INFO L225 Difference]: With dead ends: 66 [2022-11-16 15:56:12,482 INFO L226 Difference]: Without dead ends: 64 [2022-11-16 15:56:12,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:12,484 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:12,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 92 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:12,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-16 15:56:12,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2022-11-16 15:56:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 24 states have (on average 1.75) internal successors, (42), 37 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-16 15:56:12,492 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 3 [2022-11-16 15:56:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:12,493 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-16 15:56:12,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-16 15:56:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-16 15:56:12,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:12,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-16 15:56:12,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:56:12,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:12,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash 3759400, now seen corresponding path program 1 times [2022-11-16 15:56:12,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:12,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715591150] [2022-11-16 15:56:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:12,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:12,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:12,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715591150] [2022-11-16 15:56:12,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715591150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:12,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:12,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:56:12,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370314914] [2022-11-16 15:56:12,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:12,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:12,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:12,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:12,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:12,656 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:12,704 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-11-16 15:56:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:56:12,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-16 15:56:12,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:12,708 INFO L225 Difference]: With dead ends: 38 [2022-11-16 15:56:12,708 INFO L226 Difference]: Without dead ends: 37 [2022-11-16 15:56:12,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:12,710 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 63 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:12,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 33 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-16 15:56:12,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-16 15:56:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-16 15:56:12,717 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 4 [2022-11-16 15:56:12,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:12,718 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-16 15:56:12,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-11-16 15:56:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 15:56:12,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:12,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 15:56:12,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:56:12,730 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:12,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:12,736 INFO L85 PathProgramCache]: Analyzing trace with hash -693508137, now seen corresponding path program 1 times [2022-11-16 15:56:12,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:12,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170414060] [2022-11-16 15:56:12,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:12,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:12,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170414060] [2022-11-16 15:56:12,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170414060] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522026220] [2022-11-16 15:56:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:12,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:12,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:12,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:12,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:56:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:12,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 15:56:12,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:13,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:56:13,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522026220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:13,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:56:13,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2022-11-16 15:56:13,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971565071] [2022-11-16 15:56:13,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:13,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:56:13,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:13,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:56:13,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-16 15:56:13,079 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:13,147 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-16 15:56:13,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:56:13,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 15:56:13,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:13,149 INFO L225 Difference]: With dead ends: 37 [2022-11-16 15:56:13,151 INFO L226 Difference]: Without dead ends: 36 [2022-11-16 15:56:13,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:56:13,161 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:13,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 54 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-16 15:56:13,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2022-11-16 15:56:13,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:13,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-11-16 15:56:13,168 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 6 [2022-11-16 15:56:13,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:13,168 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-11-16 15:56:13,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:13,169 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-11-16 15:56:13,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 15:56:13,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:13,169 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-16 15:56:13,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:13,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:13,371 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:13,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:13,371 INFO L85 PathProgramCache]: Analyzing trace with hash -693508517, now seen corresponding path program 1 times [2022-11-16 15:56:13,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:13,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104992526] [2022-11-16 15:56:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:13,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:13,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:13,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104992526] [2022-11-16 15:56:13,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104992526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:13,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078101745] [2022-11-16 15:56:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:13,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:13,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:13,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:13,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:56:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:13,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 15:56:13,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:13,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:13,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078101745] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:13,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [539052741] [2022-11-16 15:56:13,731 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-16 15:56:13,731 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:13,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:13,743 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:13,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:13,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:13,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:13,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:14,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:56:14,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-16 15:56:14,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:14,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:14,292 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:14,759 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '518#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post10#1|) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2022-11-16 15:56:14,759 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:56:14,760 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:14,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-16 15:56:14,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733774779] [2022-11-16 15:56:14,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:56:14,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 15:56:14,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:14,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 15:56:14,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-16 15:56:14,762 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:15,037 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2022-11-16 15:56:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:56:15,038 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-16 15:56:15,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:15,039 INFO L225 Difference]: With dead ends: 152 [2022-11-16 15:56:15,039 INFO L226 Difference]: Without dead ends: 151 [2022-11-16 15:56:15,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-11-16 15:56:15,041 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 226 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:15,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 220 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:15,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-16 15:56:15,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 43. [2022-11-16 15:56:15,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 42 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2022-11-16 15:56:15,053 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 6 [2022-11-16 15:56:15,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:15,053 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2022-11-16 15:56:15,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2022-11-16 15:56:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 15:56:15,054 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:15,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:15,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:15,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:15,256 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:15,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:15,256 INFO L85 PathProgramCache]: Analyzing trace with hash 327205963, now seen corresponding path program 1 times [2022-11-16 15:56:15,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:15,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695717299] [2022-11-16 15:56:15,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:15,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:15,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:15,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695717299] [2022-11-16 15:56:15,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695717299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:15,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:15,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 15:56:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781151892] [2022-11-16 15:56:15,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:15,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:56:15,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:56:15,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:15,414 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:15,485 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2022-11-16 15:56:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:56:15,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 15:56:15,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:15,488 INFO L225 Difference]: With dead ends: 70 [2022-11-16 15:56:15,488 INFO L226 Difference]: Without dead ends: 43 [2022-11-16 15:56:15,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 15:56:15,490 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:15,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:15,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-16 15:56:15,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-16 15:56:15,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-11-16 15:56:15,499 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 7 [2022-11-16 15:56:15,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:15,499 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-11-16 15:56:15,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-11-16 15:56:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 15:56:15,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:15,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-16 15:56:15,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 15:56:15,501 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:15,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash -23927494, now seen corresponding path program 1 times [2022-11-16 15:56:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:15,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598236185] [2022-11-16 15:56:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:15,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:15,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:15,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598236185] [2022-11-16 15:56:15,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598236185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:15,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787051772] [2022-11-16 15:56:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:15,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:15,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:15,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:15,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 15:56:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:15,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 15:56:15,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:15,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:56:15,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787051772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:15,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:56:15,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-16 15:56:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393509034] [2022-11-16 15:56:15,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:15,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 15:56:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 15:56:15,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 15:56:15,785 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:15,832 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2022-11-16 15:56:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:56:15,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-16 15:56:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:15,840 INFO L225 Difference]: With dead ends: 43 [2022-11-16 15:56:15,840 INFO L226 Difference]: Without dead ends: 42 [2022-11-16 15:56:15,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 15:56:15,842 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 66 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:15,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 54 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:15,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-16 15:56:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-16 15:56:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 41 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-11-16 15:56:15,854 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 7 [2022-11-16 15:56:15,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:15,855 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-11-16 15:56:15,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-11-16 15:56:15,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 15:56:15,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:15,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:15,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:16,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:16,065 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:16,066 INFO L85 PathProgramCache]: Analyzing trace with hash 491843949, now seen corresponding path program 1 times [2022-11-16 15:56:16,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:16,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183337514] [2022-11-16 15:56:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:16,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:16,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183337514] [2022-11-16 15:56:16,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183337514] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116679253] [2022-11-16 15:56:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:16,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:16,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:16,186 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:16,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 15:56:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:16,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 15:56:16,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:16,314 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:56:16,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116679253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:16,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:56:16,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2022-11-16 15:56:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786705925] [2022-11-16 15:56:16,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:16,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:56:16,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:56:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:56:16,317 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:16,370 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-11-16 15:56:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:56:16,371 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 15:56:16,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:16,371 INFO L225 Difference]: With dead ends: 42 [2022-11-16 15:56:16,372 INFO L226 Difference]: Without dead ends: 41 [2022-11-16 15:56:16,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-16 15:56:16,373 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:16,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 53 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-16 15:56:16,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-16 15:56:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 40 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2022-11-16 15:56:16,379 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 10 [2022-11-16 15:56:16,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:16,380 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2022-11-16 15:56:16,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,380 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-11-16 15:56:16,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 15:56:16,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:16,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:16,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:16,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:16,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:16,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:16,589 INFO L85 PathProgramCache]: Analyzing trace with hash 491842465, now seen corresponding path program 1 times [2022-11-16 15:56:16,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:16,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409561485] [2022-11-16 15:56:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:16,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:16,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:16,619 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:16,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409561485] [2022-11-16 15:56:16,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409561485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:16,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:16,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:56:16,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084268153] [2022-11-16 15:56:16,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:16,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:56:16,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:16,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:56:16,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:56:16,623 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:16,681 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2022-11-16 15:56:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:56:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-16 15:56:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:16,684 INFO L225 Difference]: With dead ends: 61 [2022-11-16 15:56:16,684 INFO L226 Difference]: Without dead ends: 58 [2022-11-16 15:56:16,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:56:16,687 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:16,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 32 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-16 15:56:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 48. [2022-11-16 15:56:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 47 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2022-11-16 15:56:16,706 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 10 [2022-11-16 15:56:16,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:16,706 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2022-11-16 15:56:16,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2022-11-16 15:56:16,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 15:56:16,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:16,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:16,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 15:56:16,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:16,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1932706657, now seen corresponding path program 1 times [2022-11-16 15:56:16,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:16,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495792598] [2022-11-16 15:56:16,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:16,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:16,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:16,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:16,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495792598] [2022-11-16 15:56:16,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495792598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:16,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:16,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:56:16,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285761270] [2022-11-16 15:56:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:16,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:16,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:16,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:16,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:16,772 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:16,806 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2022-11-16 15:56:16,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:56:16,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 15:56:16,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:16,807 INFO L225 Difference]: With dead ends: 48 [2022-11-16 15:56:16,808 INFO L226 Difference]: Without dead ends: 47 [2022-11-16 15:56:16,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:16,809 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:16,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 54 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:16,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-16 15:56:16,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-16 15:56:16,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.5) internal successors, (57), 46 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2022-11-16 15:56:16,830 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 11 [2022-11-16 15:56:16,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:16,831 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2022-11-16 15:56:16,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,832 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2022-11-16 15:56:16,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 15:56:16,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:16,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:16,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 15:56:16,834 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:16,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1932752688, now seen corresponding path program 1 times [2022-11-16 15:56:16,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:16,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084465066] [2022-11-16 15:56:16,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:16,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:16,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:16,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084465066] [2022-11-16 15:56:16,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084465066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:16,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:16,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:56:16,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353137081] [2022-11-16 15:56:16,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:16,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:56:16,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:16,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:56:16,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:56:16,890 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:16,938 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2022-11-16 15:56:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:56:16,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-16 15:56:16,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:16,940 INFO L225 Difference]: With dead ends: 59 [2022-11-16 15:56:16,940 INFO L226 Difference]: Without dead ends: 56 [2022-11-16 15:56:16,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:56:16,941 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:16,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 33 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:16,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-16 15:56:16,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2022-11-16 15:56:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.435897435897436) internal successors, (56), 47 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2022-11-16 15:56:16,952 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 11 [2022-11-16 15:56:16,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:16,952 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2022-11-16 15:56:16,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2022-11-16 15:56:16,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-16 15:56:16,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:16,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:16,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 15:56:16,955 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:16,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash -303664624, now seen corresponding path program 1 times [2022-11-16 15:56:16,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:16,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889712351] [2022-11-16 15:56:16,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:16,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:17,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:17,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889712351] [2022-11-16 15:56:17,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889712351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:17,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:17,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:56:17,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331235200] [2022-11-16 15:56:17,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:17,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:17,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:17,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:17,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:17,031 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:17,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:17,098 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2022-11-16 15:56:17,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:56:17,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-16 15:56:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:17,101 INFO L225 Difference]: With dead ends: 56 [2022-11-16 15:56:17,101 INFO L226 Difference]: Without dead ends: 55 [2022-11-16 15:56:17,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:17,102 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 13 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:17,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:17,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-11-16 15:56:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2022-11-16 15:56:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-16 15:56:17,113 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 14 [2022-11-16 15:56:17,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:17,113 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-16 15:56:17,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:17,114 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-16 15:56:17,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:56:17,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:17,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:17,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 15:56:17,117 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:17,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:17,118 INFO L85 PathProgramCache]: Analyzing trace with hash -823668652, now seen corresponding path program 1 times [2022-11-16 15:56:17,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:17,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84429583] [2022-11-16 15:56:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:17,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:17,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:17,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84429583] [2022-11-16 15:56:17,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84429583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:17,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:17,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:56:17,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358436466] [2022-11-16 15:56:17,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:17,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:17,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:17,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:17,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:17,183 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:17,271 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2022-11-16 15:56:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:56:17,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 15:56:17,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:17,272 INFO L225 Difference]: With dead ends: 55 [2022-11-16 15:56:17,272 INFO L226 Difference]: Without dead ends: 54 [2022-11-16 15:56:17,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:17,273 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:17,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 48 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:17,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-16 15:56:17,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2022-11-16 15:56:17,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 50 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:17,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2022-11-16 15:56:17,279 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 15 [2022-11-16 15:56:17,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:17,279 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2022-11-16 15:56:17,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:17,280 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2022-11-16 15:56:17,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:56:17,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:17,281 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1] [2022-11-16 15:56:17,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 15:56:17,281 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:17,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash 405844409, now seen corresponding path program 2 times [2022-11-16 15:56:17,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:17,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048160657] [2022-11-16 15:56:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:17,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:17,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:17,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048160657] [2022-11-16 15:56:17,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048160657] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:17,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613112420] [2022-11-16 15:56:17,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:56:17,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:17,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:17,457 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:17,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 15:56:17,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 15:56:17,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:56:17,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 15:56:17,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 15:56:17,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 15:56:17,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613112420] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:17,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1041595789] [2022-11-16 15:56:17,830 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-16 15:56:17,830 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:17,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:17,831 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:17,831 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:17,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:17,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:17,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:17,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2022-11-16 15:56:18,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:18,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:18,106 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:18,580 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1891#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post10#1|) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.offset|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|))' at error location [2022-11-16 15:56:18,580 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:56:18,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:18,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 14 [2022-11-16 15:56:18,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331716616] [2022-11-16 15:56:18,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:56:18,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 15:56:18,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:18,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 15:56:18,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-11-16 15:56:18,583 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:18,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:18,978 INFO L93 Difference]: Finished difference Result 195 states and 221 transitions. [2022-11-16 15:56:18,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:56:18,979 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-16 15:56:18,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:18,980 INFO L225 Difference]: With dead ends: 195 [2022-11-16 15:56:18,980 INFO L226 Difference]: Without dead ends: 194 [2022-11-16 15:56:18,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2022-11-16 15:56:18,982 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 489 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:18,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 200 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:18,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-16 15:56:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 40. [2022-11-16 15:56:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.40625) internal successors, (45), 39 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:18,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2022-11-16 15:56:18,989 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 15 [2022-11-16 15:56:18,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:18,990 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2022-11-16 15:56:18,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:18,990 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2022-11-16 15:56:18,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 15:56:18,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:18,991 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:18,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:19,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 15:56:19,197 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1271589642, now seen corresponding path program 1 times [2022-11-16 15:56:19,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:19,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089315768] [2022-11-16 15:56:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:19,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:19,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089315768] [2022-11-16 15:56:19,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089315768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:19,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:19,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:56:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584158013] [2022-11-16 15:56:19,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:19,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:56:19,247 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:19,302 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-16 15:56:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:56:19,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-16 15:56:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:19,304 INFO L225 Difference]: With dead ends: 41 [2022-11-16 15:56:19,304 INFO L226 Difference]: Without dead ends: 38 [2022-11-16 15:56:19,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:19,305 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:19,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:56:19,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-16 15:56:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-11-16 15:56:19,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.3125) internal successors, (42), 36 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2022-11-16 15:56:19,312 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 17 [2022-11-16 15:56:19,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:19,312 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2022-11-16 15:56:19,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:19,313 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2022-11-16 15:56:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 15:56:19,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:19,314 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:19,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 15:56:19,314 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:19,315 INFO L85 PathProgramCache]: Analyzing trace with hash -764573157, now seen corresponding path program 1 times [2022-11-16 15:56:19,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:19,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137764710] [2022-11-16 15:56:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:19,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:56:19,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:19,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137764710] [2022-11-16 15:56:19,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137764710] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:19,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228773833] [2022-11-16 15:56:19,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:19,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:19,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:19,428 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:19,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 15:56:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:19,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 15:56:19,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:56:19,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:19,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:56:19,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228773833] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:19,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [480856761] [2022-11-16 15:56:19,660 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-16 15:56:19,660 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:19,660 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:19,661 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:19,661 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:19,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:19,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:19,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:19,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:56:19,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-16 15:56:19,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:19,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:20,413 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:22,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [480856761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:22,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:22,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7, 7] total 22 [2022-11-16 15:56:22,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046915754] [2022-11-16 15:56:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:22,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 15:56:22,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:22,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 15:56:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-16 15:56:22,696 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:24,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:24,621 INFO L93 Difference]: Finished difference Result 95 states and 106 transitions. [2022-11-16 15:56:24,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 15:56:24,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-16 15:56:24,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:24,623 INFO L225 Difference]: With dead ends: 95 [2022-11-16 15:56:24,623 INFO L226 Difference]: Without dead ends: 91 [2022-11-16 15:56:24,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2022-11-16 15:56:24,625 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 149 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:24,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 91 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 15:56:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-16 15:56:24,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 55. [2022-11-16 15:56:24,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.3) internal successors, (65), 54 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2022-11-16 15:56:24,636 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 18 [2022-11-16 15:56:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:24,637 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2022-11-16 15:56:24,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2022-11-16 15:56:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 15:56:24,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:24,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:24,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:24,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 15:56:24,844 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:24,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:24,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1187256091, now seen corresponding path program 1 times [2022-11-16 15:56:24,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:24,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902884964] [2022-11-16 15:56:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:24,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:56:24,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:24,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902884964] [2022-11-16 15:56:24,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902884964] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:24,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026736904] [2022-11-16 15:56:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:24,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:24,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:24,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:24,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 15:56:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:25,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 15:56:25,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 15:56:25,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 15:56:25,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026736904] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:25,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1677283764] [2022-11-16 15:56:25,198 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-16 15:56:25,198 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:25,199 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:25,199 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:25,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:25,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:25,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:25,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:25,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:56:25,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-16 15:56:25,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:25,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:25,758 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:27,971 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2712#(and (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647) (<= 2 |ULTIMATE.start_main_~k~0#1|) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483647) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_bubbleSort_#in~numbers#1.offset| 0) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.offset|) (not (<= |ULTIMATE.start_bubbleSort_#t~post3#1| 2147483646)) (<= |ULTIMATE.start_bubbleSort_~numbers#1.offset| 0) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.base|) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.offset|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (not (< (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))))))' at error location [2022-11-16 15:56:27,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:56:27,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:27,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 13 [2022-11-16 15:56:27,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616274475] [2022-11-16 15:56:27,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:56:27,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 15:56:27,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:27,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 15:56:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2022-11-16 15:56:27,974 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:28,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:28,536 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2022-11-16 15:56:28,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 15:56:28,536 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-16 15:56:28,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:28,537 INFO L225 Difference]: With dead ends: 188 [2022-11-16 15:56:28,538 INFO L226 Difference]: Without dead ends: 142 [2022-11-16 15:56:28,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=200, Invalid=1440, Unknown=0, NotChecked=0, Total=1640 [2022-11-16 15:56:28,540 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 188 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:28,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 84 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 15:56:28,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-16 15:56:28,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 83. [2022-11-16 15:56:28,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.294871794871795) internal successors, (101), 82 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2022-11-16 15:56:28,557 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 21 [2022-11-16 15:56:28,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:28,557 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2022-11-16 15:56:28,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2022-11-16 15:56:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-16 15:56:28,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:28,559 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:28,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:28,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 15:56:28,765 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:28,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:28,765 INFO L85 PathProgramCache]: Analyzing trace with hash 473055010, now seen corresponding path program 1 times [2022-11-16 15:56:28,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:28,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691932169] [2022-11-16 15:56:28,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:28,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:56:28,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691932169] [2022-11-16 15:56:28,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691932169] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926473621] [2022-11-16 15:56:28,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:28,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:28,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:28,836 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:28,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 15:56:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:28,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 15:56:28,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 15:56:29,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 15:56:29,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926473621] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:29,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1087207405] [2022-11-16 15:56:29,133 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-16 15:56:29,133 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:29,133 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:29,134 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:29,134 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:29,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:29,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:29,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:29,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:56:29,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-16 15:56:29,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:29,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:30,983 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:32,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1087207405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:32,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:32,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4, 8, 8] total 25 [2022-11-16 15:56:32,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232686684] [2022-11-16 15:56:32,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:32,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 15:56:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:32,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 15:56:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2022-11-16 15:56:32,899 INFO L87 Difference]: Start difference. First operand 83 states and 101 transitions. Second operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:35,182 INFO L93 Difference]: Finished difference Result 163 states and 197 transitions. [2022-11-16 15:56:35,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:56:35,183 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-16 15:56:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:35,184 INFO L225 Difference]: With dead ends: 163 [2022-11-16 15:56:35,185 INFO L226 Difference]: Without dead ends: 159 [2022-11-16 15:56:35,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 37 SyntacticMatches, 8 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=185, Invalid=1005, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 15:56:35,186 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 173 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:35,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 43 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 15:56:35,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-16 15:56:35,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 85. [2022-11-16 15:56:35,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 80 states have (on average 1.2875) internal successors, (103), 84 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 103 transitions. [2022-11-16 15:56:35,206 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 103 transitions. Word has length 22 [2022-11-16 15:56:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:35,206 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 103 transitions. [2022-11-16 15:56:35,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 103 transitions. [2022-11-16 15:56:35,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 15:56:35,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:35,208 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:35,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:35,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 15:56:35,414 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:35,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:35,415 INFO L85 PathProgramCache]: Analyzing trace with hash 637353139, now seen corresponding path program 1 times [2022-11-16 15:56:35,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:35,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771695083] [2022-11-16 15:56:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:35,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 15:56:35,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:35,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771695083] [2022-11-16 15:56:35,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771695083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:35,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:35,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 15:56:35,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719576497] [2022-11-16 15:56:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:56:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:56:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:35,479 INFO L87 Difference]: Start difference. First operand 85 states and 103 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:35,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:35,622 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2022-11-16 15:56:35,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:56:35,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-16 15:56:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:35,625 INFO L225 Difference]: With dead ends: 92 [2022-11-16 15:56:35,625 INFO L226 Difference]: Without dead ends: 88 [2022-11-16 15:56:35,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 15:56:35,627 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:35,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 38 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:35,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-16 15:56:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 50. [2022-11-16 15:56:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-16 15:56:35,645 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 25 [2022-11-16 15:56:35,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:35,646 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-16 15:56:35,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:35,646 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-16 15:56:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 15:56:35,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:35,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:35,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 15:56:35,651 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:35,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1158726798, now seen corresponding path program 2 times [2022-11-16 15:56:35,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:35,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34345407] [2022-11-16 15:56:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:56:35,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:35,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34345407] [2022-11-16 15:56:35,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34345407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:35,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964371055] [2022-11-16 15:56:35,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:56:35,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:35,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:35,964 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:35,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 15:56:36,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-16 15:56:36,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:56:36,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 15:56:36,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 15:56:36,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 15:56:36,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964371055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:36,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1096288879] [2022-11-16 15:56:36,415 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-16 15:56:36,416 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:36,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:36,417 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:36,417 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:36,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:36,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:36,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:36,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 32 [2022-11-16 15:56:36,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:36,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:37,007 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:39,766 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3896#(and (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647) (<= 2 |ULTIMATE.start_main_~k~0#1|) (<= 2 |ULTIMATE.start_main_~array_size~0#1|) (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483647) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_bubbleSort_#in~numbers#1.offset| 0) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.offset|) (not (<= |ULTIMATE.start_bubbleSort_#t~post3#1| 2147483646)) (<= |ULTIMATE.start_bubbleSort_~numbers#1.offset| 0) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 2 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.base|) (<= 2 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.offset|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (not (< (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))))))' at error location [2022-11-16 15:56:39,766 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:56:39,767 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:39,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 23 [2022-11-16 15:56:39,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701130364] [2022-11-16 15:56:39,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:56:39,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-16 15:56:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:39,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-16 15:56:39,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 15:56:39,769 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:41,877 INFO L93 Difference]: Finished difference Result 240 states and 277 transitions. [2022-11-16 15:56:41,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-16 15:56:41,878 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-16 15:56:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:41,879 INFO L225 Difference]: With dead ends: 240 [2022-11-16 15:56:41,879 INFO L226 Difference]: Without dead ends: 204 [2022-11-16 15:56:41,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=972, Invalid=5670, Unknown=0, NotChecked=0, Total=6642 [2022-11-16 15:56:41,883 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 871 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:41,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 106 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 15:56:41,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-11-16 15:56:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 79. [2022-11-16 15:56:41,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 78 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:41,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2022-11-16 15:56:41,906 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 31 [2022-11-16 15:56:41,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:41,907 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2022-11-16 15:56:41,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:41,907 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2022-11-16 15:56:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-16 15:56:41,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:41,908 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:41,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-16 15:56:42,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:42,114 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:42,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:42,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1454858423, now seen corresponding path program 1 times [2022-11-16 15:56:42,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:42,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630646062] [2022-11-16 15:56:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:42,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-16 15:56:42,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:42,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630646062] [2022-11-16 15:56:42,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630646062] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:42,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440441097] [2022-11-16 15:56:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:42,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:42,283 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:42,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 15:56:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:42,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 15:56:42,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 15:56:42,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 15:56:42,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440441097] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:42,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042367291] [2022-11-16 15:56:42,518 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-16 15:56:42,519 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:42,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:42,519 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:42,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:42,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:42,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:42,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:42,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:56:42,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-16 15:56:42,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:42,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:43,791 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:46,277 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4565#(and (<= 1 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647) (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483647) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_bubbleSort_#in~numbers#1.offset| 0) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.offset|) (not (<= |ULTIMATE.start_bubbleSort_#t~post3#1| 2147483646)) (<= |ULTIMATE.start_bubbleSort_~numbers#1.offset| 0) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 1 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.base|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.offset|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|) (not (< (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))))))' at error location [2022-11-16 15:56:46,278 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:56:46,278 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:46,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 11 [2022-11-16 15:56:46,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763551101] [2022-11-16 15:56:46,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:56:46,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 15:56:46,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:46,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 15:56:46,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2022-11-16 15:56:46,281 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:46,453 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2022-11-16 15:56:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:56:46,454 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-16 15:56:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:46,454 INFO L225 Difference]: With dead ends: 119 [2022-11-16 15:56:46,455 INFO L226 Difference]: Without dead ends: 76 [2022-11-16 15:56:46,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 72 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2022-11-16 15:56:46,456 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 20 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:46,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 113 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 15:56:46,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-16 15:56:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-16 15:56:46,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2022-11-16 15:56:46,478 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 32 [2022-11-16 15:56:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:46,478 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2022-11-16 15:56:46,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2022-11-16 15:56:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 15:56:46,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:46,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:56:46,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:46,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-16 15:56:46,685 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-16 15:56:46,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:46,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1767955925, now seen corresponding path program 2 times [2022-11-16 15:56:46,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:46,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869713170] [2022-11-16 15:56:46,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-16 15:56:46,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:46,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869713170] [2022-11-16 15:56:46,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869713170] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:46,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197242096] [2022-11-16 15:56:46,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:56:46,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:46,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:46,840 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:46,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 15:56:46,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 15:56:46,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:56:46,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 15:56:46,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 15:56:47,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:56:47,169 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-16 15:56:47,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197242096] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:56:47,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1266694404] [2022-11-16 15:56:47,171 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2022-11-16 15:56:47,172 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:56:47,172 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:56:47,172 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:56:47,172 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:56:47,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-16 15:56:47,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-16 15:56:47,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:47,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 15:56:47,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-16 15:56:47,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:47,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 15:56:48,619 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 15:56:50,749 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5040#(and (<= 1 |ULTIMATE.start_bubbleSort_~array_size#1|) (<= |ULTIMATE.start_bubbleSort_~array_size#1| 2147483647) (<= |ULTIMATE.start_bubbleSort_#in~array_size#1| 2147483647) (<= 1 |ULTIMATE.start_bubbleSort_~i~0#1|) (<= |ULTIMATE.start_main_~array_size~0#1| 2147483647) (<= |ULTIMATE.start_bubbleSort_#in~numbers#1.offset| 0) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.offset|) (not (<= |ULTIMATE.start_bubbleSort_#t~post3#1| 2147483646)) (<= |ULTIMATE.start_bubbleSort_~numbers#1.offset| 0) (<= |ULTIMATE.start_main_~k~0#1| 2147483647) (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (= |ULTIMATE.start_bubbleSort_~j~0#1| |ULTIMATE.start_bubbleSort_#t~post3#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 1 |ULTIMATE.start_bubbleSort_#in~array_size#1|) (= |ULTIMATE.start_main_#t~malloc9#1.offset| 0) (<= 0 |ULTIMATE.start_bubbleSort_~numbers#1.base|) (<= |ULTIMATE.start_bubbleSort_~j~0#1| 2147483648) (<= 1 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~numbers~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_#t~malloc9#1.base|) (<= 0 |ULTIMATE.start_bubbleSort_#in~numbers#1.offset|) (<= |ULTIMATE.start_bubbleSort_~i~0#1| 2147483646) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= 1 |ULTIMATE.start_main_~array_size~0#1|) (not (< (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))) (select (select |#memory_int| |ULTIMATE.start_bubbleSort_~numbers#1.base|) (+ (- 4) |ULTIMATE.start_bubbleSort_~numbers#1.offset| (* |ULTIMATE.start_bubbleSort_~j~0#1| 4))))))' at error location [2022-11-16 15:56:50,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-16 15:56:50,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:56:50,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2022-11-16 15:56:50,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797851044] [2022-11-16 15:56:50,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:56:50,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 15:56:50,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:50,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 15:56:50,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=902, Unknown=0, NotChecked=0, Total=1056 [2022-11-16 15:56:50,752 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:51,455 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2022-11-16 15:56:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 15:56:51,458 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-16 15:56:51,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:51,459 INFO L225 Difference]: With dead ends: 127 [2022-11-16 15:56:51,459 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 15:56:51,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=346, Invalid=2104, Unknown=0, NotChecked=0, Total=2450 [2022-11-16 15:56:51,461 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 296 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:51,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 65 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 15:56:51,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 15:56:51,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 15:56:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:51,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 15:56:51,463 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-11-16 15:56:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:51,463 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 15:56:51,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.473684210526316) internal successors, (66), 19 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:56:51,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 15:56:51,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 15:56:51,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2022-11-16 15:56:51,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 14 remaining) [2022-11-16 15:56:51,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2022-11-16 15:56:51,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2022-11-16 15:56:51,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2022-11-16 15:56:51,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2022-11-16 15:56:51,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2022-11-16 15:56:51,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2022-11-16 15:56:51,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2022-11-16 15:56:51,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2022-11-16 15:56:51,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2022-11-16 15:56:51,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2022-11-16 15:56:51,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2022-11-16 15:56:51,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2022-11-16 15:56:51,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:51,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d588ad16-90f6-4447-b62d-4dd2c26b8d99/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-16 15:56:51,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 15:57:02,300 WARN L233 SmtUtils]: Spent 10.62s on a formula simplification. DAG size of input: 182 DAG size of output: 184 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)